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08
2019-05
氮氣發展史
氮(dan)氣(qi)(qi)(qi)(qi)(qi)在(zai)大氣(qi)(qi)(qi)(qi)(qi)中(zhong)含量(liang)雖多于(yu)氧(yang)氣(qi)(qi)(qi)(qi)(qi),但是由(you)于(yu)它的(de)性(xing)質(zhi)不活潑,所(suo)以(yi)人們(men)是在(zai)認(ren)識(shi)氧(yang)氣(qi)(qi)(qi)(qi)(qi)之后才(cai)認(ren)識(shi)氮(dan)氣(qi)(qi)(qi)(qi)(qi)的(de)。不過它的(de)發(fa)現卻早于(yu)氧(yang)氣(qi)(qi)(qi)(qi)(qi)。1755年英國(guo)化學家布拉克(Black,J.1728-1799)發(fa)現碳酸(suan)氣(qi)(qi)(qi)(qi)(qi)之后不久,發(fa)現木(mu)炭在(zai)玻璃(li)(li)罩內燃燒后所(suo)生(sheng)成的(de)碳酸(suan)氣(qi)(qi)(qi)(qi)(qi),即使用苛(ke)性(xing)鉀溶液吸(xi)收后仍(reng)然(ran)有較大量(liang)的(de)空氣(qi)(qi)(qi)(qi)(qi)剩(sheng)下來。后來他的(de)學生(sheng)D·盧(lu)瑟福(fu)繼(ji)續用動(dong)物做實驗,把老(lao)鼠放(fang)進(jin)封閉的(de)玻璃(li)(li)罩里直至其死(si)后,發(fa)現玻璃(li)(li)罩中(zhong)空氣(qi)(qi)(qi)(qi)(qi)體積(ji)減少1/10;若將剩(sheng)余的(de)氣(qi)(qi)(qi)(qi)(qi)體再用苛(ke)性(xing)鉀溶液吸(xi)收,則會繼(ji)續減少1/11的(de)體積(ji)。D·盧(lu)瑟福(fu)發(fa)現老(lao)鼠不能生(sheng)存的(de)空氣(qi)(qi)(qi)(qi)(qi)里燃燒蠟燭,仍(reng)然(ran)可以(yi)...
28
2018-11
關于氧氣瓶的安全講座
由于在(zai)工業生產(chan)和(he)醫(yi)療救護等領域氧(yang)氣(qi)(qi)的(de)廣泛(fan)應用,氧(yang)氣(qi)(qi)瓶(ping)(ping)(ping)成為人們(men)接觸較多的(de)一種氣(qi)(qi)體(ti)氣(qi)(qi)瓶(ping)(ping)(ping)。這種氣(qi)(qi)瓶(ping)(ping)(ping)壓力(li)高,純氧(yang)又具有極強的(de)助(zhu)燃(ran)和(he)氧(yang)化(hua)性(xing)能,氧(yang)氣(qi)(qi)瓶(ping)(ping)(ping)在(zai)使(shi)用中(zhong)常(chang)發生燃(ran)燒或爆炸(zha)(zha)事故。由于壓力(li)高,氣(qi)(qi)瓶(ping)(ping)(ping)材料(liao)強度高而塑性(xing)較低,氣(qi)(qi)瓶(ping)(ping)(ping)破裂爆炸(zha)(zha)瞬時(shi)(shi)釋放(fang)的(de)機械(xie)能較多,氣(qi)(qi)瓶(ping)(ping)(ping)常(chang)破碎成片,造成嚴重(zhong)的(de)破壞(huai)和(he)傷害;氧(yang)氣(qi)(qi)瓶(ping)(ping)(ping)混入可燃(ran)物引發化(hua)學性(xing)燃(ran)燒爆炸(zha)(zha)時(shi)(shi),后果更為嚴重(zhong)。因而有必要對氧(yang)氣(qi)(qi)瓶(ping)(ping)(ping)的(de)使(shi)用安全有所了解。一、氧(yang)氣(qi)(qi)的(de)基本特性(xing)氧(yang)氣(qi)(qi)屬于氣(qi)(qi)體(ti),在(zai)室溫下(xia)無法加(jia)壓使(shi)其(qi)液化(hua)。用氣(qi)(qi)瓶(ping)(ping)(ping)儲裝(zhuang)時(shi)(shi),只(zhi)能通過加(jia)壓使(shi)其(qi)氣(qi)(qi)體(ti)體(ti)積縮小(xiao)來(lai)增(zeng)加(jia)充裝(zhuang)量。氣(qi)(qi)體(ti)經壓縮裝(zhuang)瓶(ping)(ping)(ping)后,其(qi)體(ti)積壓縮...
常(chang)用氣體使用安全常(chang)識
1高(gao)壓氣(qi)(qi)體容(rong)器的(de)品種1)壓縮氣(qi)(qi)體:氧(yang)(yang),氫,氮(dan)(dan),氦(hai)等。2)溶解氣(qi)(qi)體:乙炔(溶于丙酮(tong)中,加油(you)活性(xing)炭)3)液化氣(qi)(qi)提(ti):二(er)氧(yang)(yang)化碳,一(yi)氧(yang)(yang)化氮(dan)(dan),丙烷,石(shi)油(you)氣(qi)(qi)。4)低溫(wen)液化氣(qi)(qi)體:液態氧(yang)(yang),液態氮(dan)(dan),液態氬等。2高(gao)壓氣(qi)(qi)的(de)性(xing)質1)乙炔:無(wu)色,無(wu)嗅,(不純(chun)凈時(shi),因混有H2S,PH3等雜質,具有大蒜臭(chou))。比(bi)空(kong)氣(qi)(qi)輕,易燃(ran),易爆(bao),禁止接觸(chu)火源,呼吸有麻(ma)(ma)醉作用。2)一(yi)氧(yang)(yang)化二(er)氮(dan)(dan)(N2O):又稱笑氣(qi)(qi),無(wu)色,待芳香甜味,比(bi)空(kong)氣(qi)(qi)重,助(zhu)燃(ran),有麻(ma)(ma)醉性(xing)。3)氧(yang)(yang):無(wu)色,無(wu)嗅,比(bi)空(kong)氣(qi)(qi)略(lve)重,助(zhu)燃(ran),助(zhu)呼吸,閥門及管道禁油(you)。3高(gao)壓氣(qi)(qi)體的(de)容(rong)器與色標1)氧(yang)(yang),氫,氬,...
低溫液氧的儲罐技術
低(di)(di)(di)(di)(di)溫(wen)液(ye)氧儲罐是一(yi)種(zhong)專門用(yong)于貯存(cun)和供應(ying)低(di)(di)(di)(di)(di)溫(wen)液(ye)化氣(qi)體(ti)(ti)的夾套式真空(kong)(kong)粉末絕(jue)熱(re)壓(ya)力容(rong)器.在(zai)工業(ye)(ye)生產(chan)和日常生活中,已被廣泛應(ying)用(yong).本文通(tong)過對(dui)低(di)(di)(di)(di)(di)溫(wen)液(ye)體(ti)(ti)危險(xian)特性(xing)分(fen)(fen)析,結(jie)合低(di)(di)(di)(di)(di)溫(wen)液(ye)體(ti)(ti)貯槽各種(zhong)供氣(qi)模式.一(yi)、低(di)(di)(di)(di)(di)溫(wen)絕(jue)熱(re)氣(qi)瓶(ping)分(fen)(fen)裝由(you)低(di)(di)(di)(di)(di)溫(wen)液(ye)體(ti)(ti)貯槽液(ye)體(ti)(ti)出(chu)口,借助槽內貯存(cun)壓(ya)力,直接將低(di)(di)(di)(di)(di)溫(wen)液(ye)體(ti)(ti)分(fen)(fen)裝進(jin)入低(di)(di)(di)(di)(di)溫(wen)絕(jue)熱(re)氣(qi)瓶(ping)等專用(yong)小(xiao)容(rong)器內,可供相對(dui)獨(du)立且(qie)較大用(yong)戶(hu)使用(yong).在(zai)低(di)(di)(di)(di)(di)溫(wen)絕(jue)熱(re)氣(qi)瓶(ping)分(fen)(fen)裝時(shi)(shi),若(ruo)氣(qi)瓶(ping)上(shang)設有放(fang)空(kong)(kong)閥,應(ying)打(da)開放(fang)空(kong)(kong)閥放(fang)空(kong)(kong).分(fen)(fen)裝時(shi)(shi),操作人(ren)員應(ying)注意站立于側(ce)面作業(ye)(ye),且(qie)液(ye)體(ti)(ti)出(chu)口處或放(fang)空(kong)(kong)口不宜長久(jiu)停留.在(zai)分(fen)(fen)裝過程中,若(ruo)管(guan)閥凍結(jie),宜用(yong)70℃左右熱(re)水(shui)解凍,禁用(yong)電(dian)熱(re)烘...
氣瓶使用安全常識
由于氣(qi)(qi)體(ti)(ti)產品的(de)(de)潛在(zai)危險性,在(zai)氣(qi)(qi)體(ti)(ti)使(shi)(shi)用(yong)、搬運及(ji)(ji)儲存(cun)中應(ying)注意的(de)(de)一(yi)些安全事項(xiang)。本(ben)文(wen)僅做(zuo)簡單說明。用(yong)戶(hu)在(zai)購買氣(qi)(qi)瓶后(hou)(hou),應(ying)對氣(qi)(qi)瓶的(de)(de)漆色(se)、檢驗日期、外觀、各種標貼及(ji)(ji)其安全裝置進行檢查,確(que)(que)認盛裝氣(qi)(qi)體(ti)(ti)正確(que)(que)無誤,氣(qi)(qi)瓶安全狀況(kuang)良(liang)好(hao)后(hou)(hou)方(fang)可使(shi)(shi)用(yong)。氣(qi)(qi)瓶在(zai)運輸和裝卸過程(cheng)中應(ying)輕(qing)裝輕(qing)卸,嚴(yan)禁拋(pao)、滑、滾及(ji)(ji)劇烈碰撞。使(shi)(shi)用(yong)前(qian)應(ying)按要求將合格的(de)(de)減壓閥(fa)連接到氣(qi)(qi)瓶上,并(bing)清(qing)潔連接軟管。不(bu)同氣(qi)(qi)體(ti)(ti)的(de)(de)氣(qi)(qi)瓶使(shi)(shi)用(yong)時(shi)不(bu)要使(shi)(shi)用(yong)同一(yi)個減壓閥(fa)。燒焊時(shi),應(ying)對氣(qi)(qi)體(ti)(ti)及(ji)(ji)電氣(qi)(qi)采取(qu)適當(dang)的(de)(de)保護措(cuo)施。不(bu)要使(shi)(shi)用(yong)損(sun)壞的(de)(de)設備,如軟管、電纜及(ji)(ji)焊槍(qiang)等(deng)。不(bu)應(ying)在(zai)封閉空間內用(yong)惰性氣(qi)(qi)體(ti)(ti)(如氮氣(qi)(qi)、一(yi)氧化碳等(deng)...
標準氣體的主(zhu)要應用領域
標(biao)(biao)準(zhun)(zhun)(zhun)氣(qi)體(ti)引氣(qi)體(ti)工業名詞,標(biao)(biao)準(zhun)(zhun)(zhun)氣(qi)體(ti)屬于(yu)標(biao)(biao)準(zhun)(zhun)(zhun)物質(zhi).標(biao)(biao)準(zhun)(zhun)(zhun)物質(zhi)是(shi)高度均勻的(de),良好(hao)穩定和(he)(he)量(liang)(liang)值準(zhun)(zhun)(zhun)確的(de)測(ce)(ce)(ce)定標(biao)(biao)準(zhun)(zhun)(zhun),它們(men)具有復(fu)現,保存和(he)(he)傳(chuan)遞量(liang)(liang)值的(de)基(ji)本作用(yong)(yong)(yong)(yong)(yong),在物理,化(hua)學(xue),生(sheng)物與工程(cheng)測(ce)(ce)(ce)量(liang)(liang)領域中(zhong)用(yong)(yong)(yong)(yong)(yong)于(yu)校準(zhun)(zhun)(zhun)測(ce)(ce)(ce)量(liang)(liang)儀(yi)器(qi)(qi)和(he)(he)測(ce)(ce)(ce)量(liang)(liang)過(guo)程(cheng),評(ping)價測(ce)(ce)(ce)量(liang)(liang)方法(fa)的(de)準(zhun)(zhun)(zhun)確度和(he)(he)檢測(ce)(ce)(ce)實驗(yan)室的(de)檢測(ce)(ce)(ce)能(neng)力(li),其主要用(yong)(yong)(yong)(yong)(yong)用(yong)(yong)(yong)(yong)(yong)于(yu)以下領域:1.大型乙烯廠,合成(cheng)氨廠及其它石(shi)化(hua)企(qi)業,在裝置(zhi)開車(che),停車(che)和(he)(he)正(zheng)常生(sheng)產過(guo)程(cheng)中(zhong)需要幾十種(zhong)(zhong)純氣(qi)和(he)(he)幾百種(zhong)(zhong)多(duo)組分(fen)標(biao)(biao)準(zhun)(zhun)(zhun)混(hun)合氣(qi),用(yong)(yong)(yong)(yong)(yong)來校準(zhun)(zhun)(zhun),定標(biao)(biao)生(sheng)產過(guo)程(cheng)中(zhong)使(shi)用(yong)(yong)(yong)(yong)(yong)的(de)在線分(fen)析儀(yi)器(qi)(qi)和(he)(he)分(fen)析原料及產品質(zhi)量(liang)(liang)的(de)儀(yi)器(qi)(qi).2.常見的(de)標(biao)(biao)準(zhun)(zhun)(zhun)氣(qi)體(ti)按用(yong)(yong)(yong)(yong)(yong)途包括:氣(qi)體(ti)報警類標(biao)(biao)準(zhun)(zhun)(zhun)氣(qi)體(ti)、電(dian)力(li)能(neng)源類標(biao)(biao)...
鄂爾(er)多斯氣體(ti)供應知識介(jie)紹
鄂爾(er)多(duo)(duo)(duo)斯(si)市云寬氣體有限公(gong)司始建(jian)于(yu)(yu)2002年,公(gong)司座(zuo)落于(yu)(yu)鄂爾(er)多(duo)(duo)(duo)斯(si)伊金霍洛旗烏蘭木倫鎮補連塔村,占地(di)面(mian)積18.2多(duo)(duo)(duo)畝(mu),處阿大公(gong)路沿(yan)線(xian),交通便(bian)捷,地(di)理位置(zhi)相當(dang)優越,是一家具專業性(xing)生產乙炔(gui),充(chong)裝氧(yang)氣、氬氣、混合氣、二氧(yang)化(hua)(hua)碳等多(duo)(duo)(duo)種(zhong)(zhong)氣體的(de)一體化(hua)(hua)企業。地(di)球上的(de)化(hua)(hua)學(xue)(xue)(xue)元(yuan)(yuan)素(su)(su)有很多(duo)(duo)(duo)種(zhong)(zhong),某些化(hua)(hua)學(xue)(xue)(xue)元(yuan)(yuan)素(su)(su)遇到另外一種(zhong)(zhong)化(hua)(hua)學(xue)(xue)(xue)元(yuan)(yuan)素(su)(su)就會(hui)產生另外一種(zhong)(zhong)化(hua)(hua)學(xue)(xue)(xue)元(yuan)(yuan)素(su)(su)后者會(hui)讓(rang)人意想不到的(de)結果,比如說“鬼斧神刀”,在(zai)(zai)一把小刀上涂上酚酞試液后,在(zai)(zai)來就在(zai)(zai)燒(shao)杯(bei)中放進氫氧(yang)化(hua)(hua)鈉溶(rong)液,就能表演白刀子進紅刀子出了,比較恐(kong)怖,謹慎操(cao)作,哈哈,下面(mian)來為您介(jie)紹化(hua)(hua)學(xue)(xue)(xue)的(de)重要性(xing)。化(hua)(hua)...
鄂爾多斯氣(qi)體(ti)氫氣(qi)的(de)性質及氫氣(qi)的(de)用途
鄂(e)爾多斯氣體(ti),氫(qing)(qing)在(zai)所有(you)元(yuan)素(su)中(zhong)是量(liang)輕(qing)的(de)(de)。氧原(yuan)(yuan)子(zi)核外只(zhi)有(you)一(yi)(yi)個(ge)電(dian)子(zi)。氫(qing)(qing)有(you)三種(zhong)同位素(su),氫(qing)(qing)主(zhu)要(yao)以(yi)(yi)化合狀態存在(zai)于水、石油、煤、天然氣以(yi)(yi)及各種(zhong)生物的(de)(de)組織(zhi)中(zhong)。它在(zai)地(di)(di)殼內的(de)(de)含(han)(han)(han)量(liang)以(yi)(yi)原(yuan)(yuan)子(zi)百(bai)分(fen)比(bi)表示約為(wei)17.o%.水含(han)(han)(han)有(you)11%重量(liang)的(de)(de)氫(qing)(qing),泥土中(zhong)含(han)(han)(han)有(you)約15%,100千米的(de)(de)高空主(zhu)要(yao)成(cheng)份也是氫(qing)(qing)氣,但在(zai)大(da)氣層中(zhong)的(de)(de)含(han)(han)(han)量(liang)卻很低.鄰近地(di)(di)面的(de)(de)空氣只(zhi)有(you)極少量(liang)的(de)(de)氫(qing)(qing)。光譜分(fen)析(xi)的(de)(de)結果表明,大(da)陽和星球的(de)(de)大(da)氣中(zhong)含(han)(han)(han)有(you)大(da)量(liang)的(de)(de)氫(qing)(qing),以(yi)(yi)原(yuan)(yuan)子(zi)百(bai)分(fen)比(bi)表示大(da)約81.75%,從(cong)整個(ge)宇宙來看,氫(qing)(qing)是含(han)(han)(han)量(liang)多的(de)(de)一(yi)(yi)種(zhong)元(yuan)素(su)。(一(yi)(yi))氫(qing)(qing)氣的(de)(de)物理性質在(zai)通常狀況下(xia),氫(qing)(qing)氣是一(yi)(yi)種(zhong)無(wu)色(se),無(wu)味和無(wu)嗅...
氣瓶存放與安全操作規范
鄂爾多斯氣(qi)(qi)體講述(shu)氣(qi)(qi)瓶存(cun)放與(yu)安(an)全(quan)操作規范:一、氮氣(qi)(qi)瓶的(de)(de)更換(huan)1.關(guan)(guan)閉(bi)(bi)減(jian)(jian)(jian)壓(ya)閥上(shang)的(de)(de)進氣(qi)(qi)閥,關(guan)(guan)閉(bi)(bi)方(fang)(fang)向(xiang)為(wei)逆時(shi)(shi)針(zhen),旋(xuan)鈕(niu)變松時(shi)(shi)為(wei)關(guan)(guan)閉(bi)(bi)狀態。2.關(guan)(guan)閉(bi)(bi)鋼(gang)(gang)瓶上(shang)方(fang)(fang)的(de)(de)方(fang)(fang)形旋(xuan)鈕(niu),順時(shi)(shi)針(zhen)關(guan)(guan)閉(bi)(bi)鋼(gang)(gang)瓶的(de)(de)開(kai)關(guan)(guan)。用活動扳手將減(jian)(jian)(jian)壓(ya)閥從鋼(gang)(gang)瓶上(shang)卸下。3.用肥皂水檢(jian)(jian)查新(xin)鋼(gang)(gang)瓶口是否漏氣(qi)(qi),確定沒有漏氣(qi)(qi)后(hou)將減(jian)(jian)(jian)壓(ya)閥與(yu)新(xin)的(de)(de)鋼(gang)(gang)瓶上(shang)緊,檢(jian)(jian)查減(jian)(jian)(jian)壓(ya)閥開(kai)關(guan)(guan),確定閥門(men)處(chu)于(yu)關(guan)(guan)閉(bi)(bi)狀態,逆時(shi)(shi)針(zhen)緩慢打開(kai)鋼(gang)(gang)瓶上(shang)方(fang)(fang)開(kai)關(guan)(guan)旋(xuan)鈕(niu),此時(shi)(shi)減(jian)(jian)(jian)壓(ya)閥上(shang)右表顯示鋼(gang)(gang)瓶壓(ya)力(li),此時(shi)(shi)再順時(shi)(shi)針(zhen)打開(kai)減(jian)(jian)(jian)壓(ya)閥開(kai)關(guan)(guan),控制(zhi)進氣(qi)(qi)壓(ya)力(li)在0.1Mpa處(chu)。二、氮氣(qi)(qi)鋼(gang)(gang)瓶存(cun)放及注意事項1.氣(qi)(qi)瓶應貯存(cun)于(yu)通風(feng)陰涼處(chu),不能過冷(leng)、過熱或忽冷(leng)忽...
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